Forgotten chapters

As the title says, I've forgotten the chapters i was at on some manga's because i lost my old list when my laptop died (before i found out about mangaupdates) anyway, ill try describe where i was up to to the best of my memory (which isn't very good XD)

Sorry if the descriptions are lacking but that's the best i can remember (been a really long time since i read them (nearly a year or more)

1.Nononono - after she(dressed as a he) moved into the other girls house, and other girl seen her dressed as a girl then believed she was a cross-dressing guy

2.Sankarea - i think the zombie girl was starting to decay again after getting the leaves the first time

3.Air Gear - i think MC's team was fighting his sisters team in a tunnel or something

4.Sora no Otoshimono - i think the MC's girlfriend just died and came back as an angel to kill him

really wish i could, but the best i can come up with is it was after some runaway sekirei and akishiaba on a railroad bridge and some big city battle, its been over a year and ive read alot of manga since, so i probably got it a bit jumbled, oh and im pretty sure he had his full harem by this point